Anoop Sam John commented on HBASE-16408:

As of now there is no problem (I was wrong).. Even if BucketCache is onheap, we 
dont consider that size at all in size calc for HeapMemory tuner.    Now we 
have optimized off heap read so am wondering why we need on heap version of 
bucket cache.   File and off heap mode is enough?  Do some one really using 
BucketCache on heap?  Off heap will perform equally or even better now.  
[~stack] how abt removing on heap Bucket cache mode?

> Handle On heap BucketCache size when HeapMemoryManager tunes memory
> -------------------------------------------------------------------
>                 Key: HBASE-16408
>                 URL: https://issues.apache.org/jira/browse/HBASE-16408
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 2.0.0

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